APA (7th ed.) Citation

Marx, K., & Engels, F. (1981). The Communist manifesto. Penguin Books.

Chicago Style (17th ed.) Citation

Marx, Karl, and Friedrich Engels. The Communist Manifesto. Harmondsworth, Eng: Penguin Books, 1981.

MLA (9th ed.) Citation

Marx, Karl, and Friedrich Engels. The Communist Manifesto. Penguin Books, 1981.